example08.19

UNIX[1].shell范例精解(第4版)_code

#!/bin/sh
file=./testing
if [ -d $file ] 
then
	echo "$file is a directory" 
elif [ -f $file ]
then 
	if [  -r $file -a -w $file -a -x $file ] 
	then   # nested if command
		echo "You have read, write, and execute \
		permission on $file."
	fi
else
	echo "$file is neither a file nor a directory."
fi